Determinants of muscle deoxygenation during chest resistance exercise

2021 Fiscal Year Final Research Report

• Project/Area Number: 19K20092
• Research Category: Grant-in-Aid for Early-Career Scientists
• Allocation Type: Multi-year Fund
• Review Section: Basic Section 59030:Physical education, and physical and health education-related
• Research Institution: Doshisha University
• Principal Investigator: Takagi Shun 同志社大学, スポーツ健康科学部, 助教 (80735415)
• Project Period (FY): 2019-04-01 – 2022-03-31
• Keywords: 胸部 / レジスタンス運動 / 筋内低酸素化 / 筋肥大 / 筋力 / 中心循環 / 筋活動量 / 呼吸効率

Outline of Final Research Achievements

The aim of this study was to investigate the muscle deoxygenation during chest resistance exercise and its relationship to training effects (muscle strength and thickness) in healthy young men. Muscle deoxygenation at pectoralis major was enhanced after resistance training, and the enhancement of muscle deoxygenation was related to increases in muscle strength and thickness in young men.

Free Research Field

運動生理学

Academic Significance and Societal Importance of the Research Achievements

社会の高齢化や不活動化の進行により、生涯にわたる筋量の維持・増大とその機序の解明は喫緊の課題であり、若年期から筋量増大は将来の筋量の維持に対して有効である。胸部のレジスタンス運動中に筋内低酸素化の亢進がトレーニング効果（筋量・筋力）と関連した本研究の結果は、胸部の筋肥大・筋力向上における筋内低酸素化の重要性およびレジスタンス運動の効率化において筋内低酸素化をモニターする有用性を示唆している。